The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 1994
Filed:
Apr. 19, 1993
Applicant:
Inventors:
Russell J VanRens, Milwaukee, WI (US);
Donald L Lessard, Antioch, IL (US);
Assignee:
Outboard Marine Corporation, Waukegan, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D / ; B22D / ;
U.S. Cl.
CPC ...
164305 ; 164253 ;
Abstract
The vacuum valve apparatus is used in die casting equipment of the type which utilize a source of vacuum pressure in an internal die cavity for making a casting. The apparatus includes a valve body that has components that are separable along a split line that is positioned to facilitate removal of casting material from internal ports that may result in the event of a malfunction.